Duplicate pages with canonical links still show as errors

[LockyDotser]

On our CMS, there are duplicate pages such as /news, /news/, /news?page=1, /news/?page=1. From an SEO perspective, I'm not too worried, because I guess Google is pretty capable of sorting this out, but to be on the safe side, I've added canonical links. /news itself has no link, but all the other variants have links to "/news". (And if you go wild and add a bunch of random meaningless parameters, creating /news/?page=1&jim=jam&foo=bar&this=that, we will laugh at you and generate a canonical link back to "/news". We're clever like that.)

So far so good. And everything appears to work fine. But SEOMoz is still flagging up errors about duplicate titles and duplicate content. If you click in, you'll see a "Note" on each error, showing that SEOMoz has found the canonical link. So SEOMoz knows the duplication isn't a problem, as we're using canonical links exactly the way they're supposed to be used, and yet is still flagging it as an error.

Is this something I should be concerned about, or is it just a bug in SEOMoz?

[JustinTaylor88]

Hi Loughnan

Its a bit difficult to diagnose without seeing the pages in question, so could post the full URL and also an example of 2 pages that the SEOmoz web app is seeing as duplicate.

If you rather not put the link up on here, feel free to Private Message me.

Justin

[robhparker]

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